~When cats are happy or pleased, they squeeze their eyes shut~The elephant is the only animal with 4 knees~Some Chinese believe that swinging the arms cures headaches~Every time you sneeze some of your brain cells die~When you blush, the lining of your stomach also turns red~When hippos are upset, their sweat turns red~Women blink nearly twice as much as men~You burn more calories sleeping than you do watching TV..~A snail can sleep for three years~Dogs have about 10 vocal sounds; cats have over 100~Human eye detects 10 million colors ~Kissing helps prevent tooth decay~Butterflies smell with their feet ~Your thumb is the same length as your nose~The egg came first